Home / 1,187,337.60-1,638,619.20-734,774.40

Finding the Fourth Proportional to 1,187,337.60, 1,638,619.20 and 734,774.40

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Solution

The fourth proportional to 1,187,337.60, 1,638,619.20 and 734,774.40 is: 1,014,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,337.60 : 1,638,619.20 = 734,774.40 : x
  2. Step 2: Convert to fraction form
    1,187,337.60/1,638,619.20 = 734,774.40/x
  3. Step 3: Cross multiply
    1,187,337.60x = 1,638,619.20 × 734,774.40
  4. Step 4: Simplify right side
    1,187,337.60x = 1,204,015,439,508.48
  5. Step 5: Solve for x
    x = 1,204,015,439,508.48/1,187,337.60
  6. Step 6: Final answer
    x = 1,014,046.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.